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(ModeL) W. E. WILD.

SOCKET WRENCH- Y WITNESSES Patented Sept. 20,1881.

INVENTOR W5 W BY M ATTORNEYS.

UNITED STATES "PATENT OFFICE.

WILLIAM E. WIIJD, OF LEAD orrY, DAKOTA TERRITORY.

SOCKET-WRENCH.

SPECIFICATION forming part of Letters Patent No. 247,454, dated September 20, 1881.

Application filed May 4, 1881.

To all whom it may concern:

Be it known that I, VVILLIAIVI E. WILD, of Lead City, in the county of Lawrence and Territory'of Dakota, have invented a new and useful Improvement in Socketrenches, of which the following is a full, clear, and exact description, reference being had to the drawings hereto annexed, in which- Figure 1 is a plan view of my improvement; and Fig. 2, a side elevation of the same, partly in section.

My invention relates to nut-wrenches in which the socket is provided with an interior adjustable section for adapting the socket to nuts of different sizes; and my improvement consists in a certain construction and arrangement of parts by which the adjustable section shall be secured in the strongest manner compatible with lightness, simplicity of construction, and convenience in use.

As heretofore constructed, the interior adjustable section of a socket in a nut-wrench has been secured in place and operated by means of a comparatively small screw workwell.

Another objection to the thumb-nut and screw is that, owing to the central position of the screw, the shank or body of the wrench must be transversely recessed in the portion where great strength is required in order to accommodate the thumb-nut. The screw or cylindrical bolt, moreover, owing to the necessary strain upon the adjustable section, is not adapted to hold the said section rigidly in position, and in case the wrench should slip off while being applied to a nut this section is liable to turn out of its horizontal plane and will need to be readjusted.

(Model) To overcome the above-mentioned objections I construct a wrench of the following description Referring to the drawings, A is the socket of the wrench, B the shank, and G the handle, allot which parts can be madein onepiece. The socket A can be made square, as shown in the drawings, or it can be made with eight sides or any other desired number of sides. The shank B is perforated o'r chambered longitudinally with a square hole, into which is fitted a rectangular bar, I), having the usual angular jaw or adjustable section, E, formed upon its forward end. The inner angle of the socket A is recessed to receive thejaw or section E, so that when the bar 1) is fully drawn back the inner surface of the said section E will be flush with the adjacent parts of the inner surface of the socket A.

Upon the upper side of the rectangular bar D are formed screw-teeth F, into which lit the threads of the endless screw or worm G, which is pivoted, by a screw-pivot, I, to and between the shoulder at the forward end of the handle G, and a stud or projection,H,formed upon the shank B. The lower side of the worm G projects through a small opening in the upper part of the shank B,so as to mesh with the teeth of the bar D.

With this construction it will be seen that the bar D may be made as large as desired, for the purpose of strengthening the adjustable section, without the necessity of increasing the size of'the worm, and as this bar is rectangular it cannot turn in its socket or chamber. Consequently the adjustable section E will be held in a perfectly rigid manner; and as the worm is arranged above the shank instead of being located within it, as is usually the case, the shank is thereby made stronger than where it is transversely recessed to accommodate the thumb-nut.

Having thus described my improvement, what I claim as new, and desire to secure by Letters Patent, is-

1. In a socket-wrench having an adjustable section inside the socket,the combination, with the section or jaw E and the rectangular rockbar D, of the worm G, which is pivoted above the said shank,substantiallyas shown and de- I described, whereby the said shank shall not scribed, whereby a large bar may be operated I be weakened by unnecessary recesses, as set 10 by the smallest expedient, as set forth. forth. I

2. In a socket-wrench having an adjustable v 5 section inside the socket, the combination of WILLIAM ARD WILD the shouldered handle 0, the shank B, hav- Witnesses: ing stud H, the pivoted worm G, and rectan- LOUIS NATHAN, gular rack-bar D, substantially as shown and T. D. EDWARDS. 

